Preload animation assets on homepage

Author: philwareham

src/assets/js/indexcanvas.js

@@ -1080,7 +1080,7 @@
         opacity: 1,
         manifest: [
             {
-                src: '../assets/img/com/index-animation.png',
+                src: '/assets/img/com/index-animation.png',
                 id: 'index-animation'
             }
         ]

src/templates/pages/default.txp

@@ -12,6 +12,7 @@
             <meta name="description" content="Blog article ‘<txp:category title />’ category archive.">
             <meta name="robots" content="noindex, follow">
         <txp:else />
+            <link rel="preload" href="/assets/img/com/index-animation.png" as="image">
             <title>Textpattern CMS | Open source content management system</title>
             <meta name="description" content="Textpattern CMS is a free, PHP open source CMS (content management system) with a browser-based interface in over 50 languages.">
             <meta name="keywords" content="cms, content management systems, open source, blogs, blogging, free, wordpress alternatives, fast, lightweight, web design, web site design, web development, web site development, php, foss">